Home / 475,115.50-712,742.74-138,112.35

Finding the Fourth Proportional to 475,115.50, 712,742.74 and 138,112.35

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Solution

The fourth proportional to 475,115.50, 712,742.74 and 138,112.35 is: 207,188.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,115.50 : 712,742.74 = 138,112.35 : x
  2. Step 2: Convert to fraction form
    475,115.50/712,742.74 = 138,112.35/x
  3. Step 3: Cross multiply
    475,115.50x = 712,742.74 × 138,112.35
  4. Step 4: Simplify right side
    475,115.50x = 98,438,574,766.84
  5. Step 5: Solve for x
    x = 98,438,574,766.84/475,115.50
  6. Step 6: Final answer
    x = 207,188.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.